Improved lime-kiln



e tlnimli fiat-tea gnited l (digits 5 GEORGE ATKINS,.OF SHARON, PENNSYLVANIA.

Letters Patent No. 87,131, dated Februa/ry 23, 1869.

IMPROVED LIME-KILN.

The Schedule referred to in these Letters Patent and making part of the same.

To allfwhom it may concern:

Be it known that I, GEORGE ATKINS, of Sharon, in the county of Mercer, and State of Pennsylvania, have invented a new and useful Improvement in Lime-Kilns and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use, the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a vertical section of my improved limekiln, taken through the line a: x, fig. 2.

Figure 2 is a horizontal section of the same, taken through the line y y, fig. 1.

Similar letters of reference indicate like parts. .My invention has for its object to furnish an im-' proved lime-kiln, simple in construction, easily and conveniently operated, and which will burn the lime thoroughly with a comparatively small amount of fuel; and 7 It consists in the construction and combination of the various part-s as hereinafter more fully described.

The kiln is constructed somewhat similar to a double heating-furnace, with two or more fire-grates.

B is the bosh, which is made in the shape'of an inverted. truncated cone, and having a much greater diameter than the diameter of the stack 0.

D are the furnaces, which project from or are formed at the sides of the kiln, are arched over, and from which the products of combustion pass directly into the upper part of the bosh B, through the wide flues E, at

the base of the stack F the discharge-door, through which the burned lime .s withdrawn from the said bosh B. p

The stack 0 is formed in sections of different external diameters, each upper section being of a less external diameter than the preceding lower section.

The stack 0 is lined with fire-brick, c, and the sev-- eral sections are bound with sheet-iron. c", as shown in l3y this construction, the part of the stack 0 that is exposed to the greatest heat, is made the heaviest,

or. thickest, and the walls of the said stack become lighter, or thinner toward the top, as the intensity of the'heat diminishes.

I am aware that the several devices, and mainly also their combination, are not new, and therefore I do not claim them separately nor in combination; neither do I claim, broadly, handing the cupola of a lime-kilnwith viron, as I am aware this has been done before; but

What I do claim as new, and desire to secure by Lettors-Patent, is

herein described, for the purposespecified.

Witnesses:

E. T. HIGGS, E. S. BUDD.

enonen ATkINs. 

